body {
    padding: 10px;
    margin: 0;
}

#layout1 {
    width: 100%;
    margin: 40px;
    height: 400px;
    margin: 0;
    padding: 0;
}

#accordion1 {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

h4 {
    margin: 20px;
}